Links

http://www.ipipotash.org/ Homepage of the International Potash Institute (IPI), information on IPI's research activities

http://www.ppi-ppic.org/ Homepage of the Potash and Phosphate Institute, USA (PPI) and Canada (PPIC), general information on nutrients

http://www.fertilizer.org/ Homepage of the International Fertilizer Association

http://www.sdc.admin.ch/ Homepage of the Swiss Agency for Development and Cooperation (SDC)

http://www.eseap.org/ Homepage of the East and Southeast Asia Program (ESEAP) of the Potash and Phosphate Institute and Potash and Phosphate Institute of Canada

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Research agenda
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Site-Specific Nutrient Management

What's new
Leaf color chart (LCC)
Nutrient omission plot technique
Zinc addition plot
Rice: a practical guide to nutrient management